No package sync

Hello List I have two servers in the system overview - both systems show a different number of packages and erata to be installed. When I install these packages the job completes successfully but the number remains the same in the system overview. A zypper update directly on the systems reports that there are no updates and when I use zypper info to compare the version of the displayed packages inside Uyuni, the packages in the list are already installed. How can I force Uyuni to correctly detect the installed packages and correct the list? Best regards Martin